| 1 | Revision history for libev, a high-performance and full-featured event loop. |
1 | Revision history for libev, a high-performance and full-featured event loop. |
| 2 | |
2 | |
| 3 | TODO: ev_loop_wakeup |
3 | TODO: revisit 59.x timer in the light of modern powersaving |
| 4 | TODO: EV_STANDALONE == NO_HASSEL (do not use clock_gettime in ev_standalone) |
4 | TODO: ^ maybe just increase it when timerfd, modern linux only thing that counts? |
| 5 | TODO: faq, process a thing in each iteration |
5 | TODO: document EV_TSTAMP_T |
| 6 | TODO: dbeugging tips, ev_verify, ev_init twice |
6 | TODO: for next ABI/API change, consider moving EV__IOFDSSET into io->fd instead and provide a getter. |
| 7 | TODO: ev_break for immediate exit (EVBREAK_NOW?) |
|
|
| 8 | TODO: ev_feed_child_event |
|
|
| 9 | TODO: document the special problem of signals around fork. |
|
|
| 10 | TODO: store pid for each signal |
|
|
| 11 | TODO: document file descriptor usage per loop |
|
|
| 12 | TODO: store loop pid_t and compare isndie signal handler,store 1 for same, 2 for differign pid, clean up in loop_fork |
|
|
| 13 | TODO: embed watchers need updating when fd changes |
|
|
| 14 | TODO: document portability requirements for atomic pointer access |
|
|
| 15 | TODO: possible cb aliasing? |
|
|
| 16 | TODO: document requirements for function pointers and calling conventions. |
|
|
| 17 | |
7 | |
|
|
8 | TODO: maybe allow events = 0 for io watchers |
|
|
9 | - the 4.31 timerfd code wrongly changes the priority of the signal |
|
|
10 | fd watcher, which is usually harmless unless signal fds are |
|
|
11 | also used (found via cpan tester service). |
|
|
12 | - the documentation wrongly claimed that user may modify fd and events |
|
|
13 | members in io watchers when the wqatcher was stopped |
|
|
14 | (found by b_jonas). |
|
|
15 | - new ev_io_modify mutator which changes only the events member, |
|
|
16 | which cna be faster. |
|
|
17 | - do not wake up every minute when timerfd is used to detect timejumps. |
|
|
18 | - support a lot more "uncommon" compile time configurations, |
|
|
19 | such as ev_embed enabled but ev_timer disabled. |
|
|
20 | - the linux aio backend is no longer compiled in by default. |
|
|
21 | - update to libecb version 0x00010008. |
|
|
22 | |
|
|
23 | 4.31 Fri Dec 20 21:58:29 CET 2019 |
|
|
24 | - handle backends with minimum wait time a bit better by not |
|
|
25 | waiting in the presence of already-expired timers |
|
|
26 | (behaviour reported by Felipe Gasper). |
|
|
27 | - new feature: use timerfd to detect timejumps quickly, |
|
|
28 | can be disabled with the new EVFLAG_NOTIMERFD loop flag. |
|
|
29 | - document EV_USE_SIGNALFD feature macro. |
|
|
30 | |
|
|
31 | 4.30 (EV only) |
|
|
32 | - change non-autoconf test for __kernel_rwf_t by testing |
|
|
33 | LINUX_VERSION_CODE, the most direct test I could find. |
|
|
34 | - fix a bug in the io_uring backend that polled the wrong |
|
|
35 | backend fd, causing it to not work in many cases. |
|
|
36 | |
|
|
37 | 4.29 (EV only) |
|
|
38 | - add io uring autoconf and non-autoconf detection. |
|
|
39 | - disable io_uring when some header files are too old. |
|
|
40 | |
|
|
41 | 4.28 (EV only) |
|
|
42 | - linuxaio backend resulted in random memory corruption |
|
|
43 | when loop is forked. |
|
|
44 | - linuxaio backend might have tried to cancel an iocb |
|
|
45 | multiple times (was unable to trigger this). |
|
|
46 | - linuxaio backend now employs a generation counter to |
|
|
47 | avoid handling spurious events from cancelled requests. |
|
|
48 | - io_cancel can return EINTR, deal with it. also, assume |
|
|
49 | io_submit also returns EINTR. |
|
|
50 | - fix some other minor bugs in linuxaio backend. |
|
|
51 | - ev_tstamp type can now be overriden by defining EV_TSTAMP_T. |
|
|
52 | - cleanup: replace expect_true/false and noinline by their |
|
|
53 | libecb counterparts. |
|
|
54 | - move syscall infrastructure from ev_linuxaio.c to ev.c. |
|
|
55 | - prepare io_uring integration. |
|
|
56 | - tweak ev_floor. |
|
|
57 | - epoll, poll, win32 Sleep and other places that use millisecond |
|
|
58 | reslution now all try to round up times. |
|
|
59 | - solaris port backend didn't compile. |
|
|
60 | - abstract time constants into their macros, for more flexibility. |
|
|
61 | |
|
|
62 | 4.27 Thu Jun 27 22:43:44 CEST 2019 |
|
|
63 | - linux aio backend almost completely rewritten to work around its |
|
|
64 | limitations. |
|
|
65 | - linux aio backend now requires linux 4.19+. |
|
|
66 | - epoll backend now mandatory for linux aio backend. |
|
|
67 | - fail assertions more aggressively on invalid fd's detected |
|
|
68 | in the event loop, do not just silently fd_kill in case of |
|
|
69 | user error. |
|
|
70 | - ev_io_start/ev_io_stop now verify the watcher fd using |
|
|
71 | a syscall when EV_VERIFY is 2 or higher. |
|
|
72 | |
|
|
73 | 4.26 (EV only) |
|
|
74 | - update to libecb 0x00010006. |
|
|
75 | - new experimental linux aio backend (linux 4.18+). |
|
|
76 | - removed redundant 0-ptr check in ev_once. |
|
|
77 | - updated/extended ev_set_allocator documentation. |
|
|
78 | - replaced EMPTY2 macro by array_needsize_noinit. |
|
|
79 | - minor code cleanups. |
|
|
80 | - epoll backend now uses epoll_create1 also after fork. |
|
|
81 | |
|
|
82 | 4.25 Fri Dec 21 07:49:20 CET 2018 |
|
|
83 | - INCOMPATIBLE CHANGE: EV_THROW was renamed to EV_NOEXCEPT |
|
|
84 | (EV_THROW still provided) and now uses noexcept on C++11 or newer. |
|
|
85 | - move the darwin select workaround higher in ev.c, as newer versions of |
|
|
86 | darwin managed to break their broken select even more. |
|
|
87 | - ANDROID => __ANDROID__ (reported by enh@google.com). |
|
|
88 | - disable epoll_create1 on android because it has broken header files |
|
|
89 | and google is unwilling to fix them (reported by enh@google.com). |
|
|
90 | - avoid a minor compilation warning on win32. |
|
|
91 | - c++: remove deprecated dynamic throw() specifications. |
|
|
92 | - c++: improve the (unsupported) bad_loop exception class. |
|
|
93 | - backport perl ev_periodic example to C, untested. |
|
|
94 | - update libecb, biggets change is to include a memory fence |
|
|
95 | in ECB_MEMORY_FENCE_RELEASE on x86/amd64. |
|
|
96 | - minor autoconf/automake modernisation. |
|
|
97 | |
|
|
98 | 4.24 Wed Dec 28 05:19:55 CET 2016 |
|
|
99 | - bump version to 4.24, as the release tarball inexplicably |
|
|
100 | didn't have the right version in ev.h, even though the cvs-tagged |
|
|
101 | version did have the right one (reported by Ales Teska). |
|
|
102 | |
|
|
103 | 4.23 Wed Nov 16 18:23:41 CET 2016 |
|
|
104 | - move some declarations at the beginning to help certain retarded |
|
|
105 | microsoft compilers, even though their documentation claims |
|
|
106 | otherwise (reported by Ruslan Osmanov). |
|
|
107 | |
|
|
108 | 4.22 Sun Dec 20 22:11:50 CET 2015 |
|
|
109 | - when epoll detects unremovable fds in the fd set, rebuild |
|
|
110 | only the epoll descriptor, not the signal pipe, to avoid |
|
|
111 | SIGPIPE in ev_async_send. This doesn't solve it on fork, |
|
|
112 | so document what needs to be done in ev_loop_fork |
|
|
113 | (analyzed by Benjamin Mahler). |
|
|
114 | - remove superfluous sys/timeb.h include on win32 |
|
|
115 | (analyzed by Jason Madden). |
|
|
116 | - updated libecb. |
|
|
117 | |
|
|
118 | 4.20 Sat Jun 20 13:01:43 CEST 2015 |
|
|
119 | - prefer noexcept over throw () with C++ 11. |
|
|
120 | - update ecb.h due to incompatibilities with c11. |
|
|
121 | - fix a potential aliasing issue when reading and writing |
|
|
122 | watcher callbacks. |
|
|
123 | |
|
|
124 | 4.19 Thu Sep 25 08:18:25 CEST 2014 |
| 18 | - ev.h wasn't valid C++ anymore, which tripped compilers other than |
125 | - ev.h wasn't valid C++ anymore, which tripped compilers other than |
| 19 | clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately, |
126 | clang, msvc or gcc (analyzed by Raphael 'kena' Poss). Unfortunately, |
| 20 | C++ doesn't support typedefs for function pointers fully, so the affected |
127 | C++ doesn't support typedefs for function pointers fully, so the affected |
| 21 | declarations have to spell out the types each time. |
128 | declarations have to spell out the types each time. |
| 22 | - when not using autoconf, tighten the check for clock_gettime and related |
129 | - when not using autoconf, tighten the check for clock_gettime and related |
